A device for improving the positioning accuracy of fixtures on multi-movers

Abstract

The present application relates to the field of jig positioning accuracy, and in particular to a device for improving the positioning accuracy of jigs on multiple movers, comprising a stator conveyor line and a mover, the mover being mounted on the stator conveyor line, a workstation being provided on the stator conveyor line, a jig being mounted on the mover, a positioning device being provided at the workstation on the stator conveyor line, the positioning device comprising a positioning block and a driving member, the driving member being mounted on the stator conveyor line, the positioning block being mounted on the driving member, a positioning hole for the positioning block to be plugged in being provided on the jig, a positioning surface being provided on the jig at the positioning hole, the side wall of the positioning block being in contact with the positioning surface and fine-tuning the jig, the present application improves the problem of poor positioning accuracy of jigs on movers in traditional methods, and can achieve the effect of improving the positioning accuracy of jigs on movers.

Description

Technical Field

[0001] The present application relates to the field of fixture positioning accuracy, and in particular to a device for improving the fixture positioning accuracy on a multi-motor. Background Art

[0002] The magnetic drive conveyor line is a device that uses magnetic field force to drive the permanent magnet on the mover to realize the transmission of materials or workpieces. It has the characteristics of high precision and high efficiency. This kind of conveyor line has been widely used in modern production lines. Compared with traditional conveying methods, the magnetic drive conveyor line has the advantages of high precision, high efficiency, strong customizability and easy maintenance.

[0003] Although the magnetic drive conveyor line achieves high-precision positioning and transmission, in actual production, a jig is often installed on the mover, and the workpiece is transported to the corresponding workstation through the jig, so that the processing equipment set up at the workstation can process the workpiece on the jig.

[0004] However, since there will inevitably be dimensional errors in the assembly of the mover and the jig, when the mover on the magnetic drive conveyor line moves to the workstation, the jig will still have a certain deviation, which will reduce the positioning accuracy of the jig and affect the processing effect of the workpiece. Summary of the invention

[0005] In order to improve the positioning accuracy of the jig on the mover, the present application provides a device for improving the positioning accuracy of the jig on multiple movers.

[0006] The present application provides a device for improving the positioning accuracy of a fixture on a multi-mover, which adopts the following technical solution:

[0007] A device for improving the positioning accuracy of a jig on a multi-movers comprises a stator conveyor line and a mover, wherein the mover is mounted on the stator conveyor line, a workstation is provided on the stator conveyor line, a jig is mounted on the mover, a positioning device is provided at the workstation on the stator conveyor line, the positioning device comprises a positioning block and a driving member, the driving member is mounted on the stator conveyor line, the positioning block is mounted on the driving member, a positioning hole for the positioning block to be plugged in is opened on the jig, a positioning surface is provided on the jig at the positioning hole, the side wall of the positioning block contacts the positioning surface and fine-tunes the jig.

[0008] By adopting the above technical solution, the mover is transported to the corresponding workstation through the stator conveyor line, and then the positioning block is driven by the driving member in the positioning device to be inserted into the positioning hole of the jig on the mover, and the side wall of the positioning block is used to abut the positioning surface to adjust the position of the jig, so that the jig can be moved to a precise position, thereby facilitating the processing equipment to process the workpiece on the jig, thereby facilitating improving the positioning accuracy of the jig on the mover.

[0009] In a specific feasible implementation scheme, the jig is mounted on the top wall of the mover, and the positioning hole is located on the top wall of the jig, the driving member is mounted above the stator conveying line, and the positioning block is located above the jig, the positioning surface includes a first contact surface and a second contact surface, the first contact surface and the second contact surface are both located on the travel path of the mover, and the first contact surface and the second contact surface are respectively located on both sides of the positioning hole, and the distance between the upper end of the first contact surface and the upper end of the second contact surface is greater than the distance between the lower end of the first contact surface and the lower end of the second contact surface, and the distance between the lower end of the first contact surface and the lower end of the second contact surface is equal to the length of the lower end of the positioning block.

[0010] By adopting the above technical solution, when the driving member drives the positioning block to descend to the positioning hole of the jig, the side wall of the lower end of the positioning block contacts the first contact surface or the second contact surface, so that the positioning block can push the jig to move through the first contact surface or the second contact surface, thereby achieving fine-tuning of the position of the jig, thereby facilitating the jig to reach a precise position.

[0011] In a specific possible implementation scheme, the positioning device also includes a positioning frame, which is installed at a workstation on the stator conveyor line. The driving member includes a cylinder, which is installed on the positioning frame and the piston rod of the cylinder extends downward. The positioning block is installed on the piston rod of the cylinder. A guide rod is also installed on the positioning frame in the vertical direction, and the lower end of the guide rod is connected to the positioning block.

[0012] By adopting the above technical solution, when the mover drives the jig to move to the positioning frame, the positioning block is driven downward by the cylinder, so that the positioning block can be differentially connected to the positioning hole of the jig, thereby completing the positioning work, and when the positioning block moves downward, the guide rod provides guidance for the descent of the positioning block, so that the descent of the positioning block is more stable.

[0013] In a specific feasible implementation scheme, the positioning device also includes a limiting mechanism, which includes a centering component and an avoidance component, the centering component includes a centering plate, a push block, a reset member and a touch switch, the centering plate is mounted on the side wall of the mover, and the centering plate and the central axis of the positioning hole of the fixture are located on the same plane, the touch switch is mounted on the side wall of the positioning frame, and the touch switch is located on the central axis of the positioning block, the touch switch is electrically connected to the cylinder, a guide rail is installed on the side wall of the positioning frame near the touch switch along the travel direction of the mover, the push block is installed in the guide rail, and a first push plate and a second push plate are installed on the push block through a connecting member, the first push plate and the second push plate are respectively located on both sides of the touch switch, and the side walls of the first push plate and the second push plate are used to resist the touch switch, the reset member is mounted on the guide rail, and the reset member is connected to the push block, the avoidance component is mounted on the positioning frame, the avoidance component is connected to the cylinder, and the avoidance component is also connected to the push block.

[0014] By adopting the above technical solution, when the mover drives the jig to move to the positioning frame, the centering plate on the mover contacts the first push plate or the second push plate, and pushes the first push plate or the second push plate in the direction of the touch switch, so that the first push plate or the second push plate can drive the push block to move and generate a force on the reset member. When the centering plate drives the first push plate or the second push plate to contact the touch switch, the jig has moved to align the positioning block with the positioning hole, and the touch switch sends an instruction to the control system, and the control system sends an instruction to the cylinder, so that the cylinder drives the positioning block to move downward until it is inserted into the positioning hole, thereby adjusting the position of the jig, thereby facilitating the improvement of the positioning accuracy of the jig. And before the positioning block descends to be inserted into the positioning hole, the avoidance component is actuated, so that the first push plate or the second push plate is separated from the centering plate, thereby releasing the limit on the mover, so that when the positioning block adjusts the position of the jig, the mover can produce a certain displacement, thereby facilitating the adjustment action.

[0015] In a specific feasible implementation scheme, the connecting member includes a first connecting plate, a second connecting plate, a first torsion spring and a second torsion spring, the first connecting plate is mounted on the push block close to the first push plate, and the first connecting plate is located on a side of the first push plate close to the touch switch, the first connecting plate is used to limit the first push plate, the first torsion spring is mounted on the push block, and the first torsion spring is connected to the first push plate, the second connecting plate is mounted on the push block close to the second push plate, and the second connecting plate is located on a side of the second push plate close to the touch switch, and the second connecting plate is used to limit the second push plate, the second torsion spring is mounted on the push block, and the second torsion spring is connected to the second push plate.

[0016] By adopting the above technical solution, when the mover moves from the side of the first push plate away from the second push plate to the positioning frame, the centering plate contacts the side wall of the end of the first push plate, so that the first push plate contacts the first connecting plate, and under the limit of the first connecting plate, the first push plate drives the push block to move, so that the first push plate can contact the touch switch, so as to facilitate the start of the positioning station. After the processing of the workpiece on the fixture is completed, the mover continues to move forward to the second push plate, the centering plate contacts the second push plate, and pushes the second push plate away from the touch switch, so that the second push plate rotates and stretches the second torsion spring, so that the end of the centering plate can pass over the end of the second push plate, so that the second push plate does not affect the normal operation of the mover. On the contrary, when the mover moves from the side of the second push plate away from the first push plate to the positioning frame, the centering plate pushes the second push plate, so that the second push plate drives the push block to move under the limit of the second connecting plate. Then, after completing the processing of the workpiece, the mover continues to move until the centering plate contacts the end of the first push plate, thereby pushing the first push plate away from the second push plate, thereby causing the first push plate to rotate, so as to avoid the centering plate and thus not affecting the normal operation of the mover.

[0017] In a specific possible implementation scheme, the reset member includes a first spring and a second spring, both of which are installed in the guide rail, and the first spring is located at one end of the push block close to the first push plate, and one end of the first spring is connected to the guide rail, and the other end is connected to one end of the push block, and the second spring is located at one end of the push block close to the second push plate, and one end of the second spring is connected to the guide rail, and the other end is connected to the other end of the push block.

[0018] By adopting the above technical solution, when the first push plate pushes the push block to move, the push block stretches the first spring and compresses the second spring. When the push block needs to be reset, the elastic force of the first spring and the second spring drives the push block to reset, thereby facilitating the push block to drive the first push plate and the second push plate to reset, thereby facilitating continuous adjustment of the position of the fixture on the mover.

[0019] In a specific feasible implementation scheme, the avoidance component includes a avoidance rod and a avoidance spring, a pressure plate is installed on the piston rod of the cylinder above the positioning block, the avoidance rod is installed on the side wall of the positioning frame in the vertical direction, and the lower end of the avoidance rod extends to the push block, and a avoidance block is installed on the side wall of the lower end of the avoidance rod close to the push block, the side of the avoidance block close to the push block is arc-shaped, and the avoidance block is used to resist the push block, and a return spring is also installed on the avoidance rod, one end of the return spring is connected to the positioning frame, and the other end is connected to the avoidance rod, the avoidance spring is installed in the guide rail, and one end of the avoidance spring is connected to the side wall of the positioning frame, and the other end extends to the side of the push block away from the stator conveying line and resists the push block.

[0020] By adopting the above technical solution, when the position of the fixture needs to be adjusted, the cylinder drives the pressure plate down to contact the avoidance rod, so that the avoidance rod drives the avoidance block to contact the side wall of the push block, thereby pressing the push block into the guide rail, so that the push block drives the avoidance spring piece to undergo elastic deformation, so that when the cylinder drives the positioning block to move upward to the initial position, the push block returns to the initial position under the action of the avoidance spring piece, thereby facilitating the positioning of the fixture on the next mover.

[0021] In a specific feasible implementation scheme, the limiting mechanism also includes a locking assembly, which includes a locking block, a locking plate and an elastic member, the locking block is mounted on the side wall of the mover, and the locking block is located below the centering plate, the locking plate is mounted on the side wall of the positioning frame, and the locking plate is located below the push block, and a locking groove for plugging the locking block is provided on the side wall of the locking plate, the elastic member is mounted on the positioning frame, and the elastic member is connected to the locking plate, a driving block is installed on the side wall of the side of the avoidance block away from the avoidance block at the lower end of the avoidance rod, a driving hole for plugging the avoidance rod and the driving block is provided on the top wall of the locking plate, and the driving block is used to push the locking plate to move in the direction of the stator conveying line.

[0022] By adopting the above technical solution, when the position adjustment of the fixture is completed, as the avoidance rod drops to the lowest point, the driving block on the avoidance rod pushes the locking plate to move in the direction of the mover through the driving hole, so that the locking groove on the locking plate is engaged with the locking block on the side wall of the mover, thereby limiting the adjusted mover, making it convenient to maintain the stability of the mover when the processing equipment processes the workpiece on the fixture, thereby facilitating improving the processing accuracy of the workpiece.

[0023] In a specific possible implementation manner, the elastic member comprises a locking spring, one end of which is connected to the positioning frame, and the other end of which is connected to the locking plate.

[0024] By adopting the above technical solution, when the locking plate and the locking block are plugged in, the locking plate drives the locking spring to produce compression deformation, so that when it is necessary to release the limit on the mover, the locking plate can be reset under the action of the locking spring, thereby separating the locking plate from the locking block, thereby releasing the limit on the mover and facilitating the movement of the mover.

[0025] In a specific possible implementation manner, the end of the locking groove away from the driving hole is open, and the side wall of the locking groove at the end close to the driving hole is in contact with the side wall of the locking block.

[0026] By adopting the above technical solution, the locking groove is opened at one end away from the driving hole, thereby making it easier to insert and position the locking block and the locking plate.

[0027] In summary, the present application includes at least one of the following beneficial effects:

[0028] 1. The present application provides a positioning device to facilitate positioning and calibration of the jig on the mover moved to the work station through the positioning device, so that the jig is moved to a precise position, thereby facilitating improving the positioning accuracy of the jig on the mover.

[0029] 2. The present application sets a locking component to facilitate locking the mover after the position adjustment of the fixture is completed, thereby reducing the movement of the mover during the processing of the workpiece on the fixture, thereby affecting the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a device for improving the positioning accuracy of a fixture on a multi-mover in the present application.

[0031] Figure 2 It is a schematic diagram of the structure of the fixture in Example 1 of the present application.

[0032] Figure 3 It is a structural diagram of the positioning device in Example 2 of the present application.

[0033] Figure 4 It is an exploded view of the centering component in the second embodiment of the present application.

[0034] Figure 5 This is a schematic diagram of the installation of the centering component in Example 2 of the present application.

[0035] Figure 6 It is a structural schematic diagram of the avoidance component in the second embodiment of the present application.

[0036] Figure 7 This is a schematic diagram of the avoidance component in the second embodiment of the present application when it is working.

[0037] Figure 8 It is a schematic diagram of the structure of the locking assembly in the second embodiment of the present application.

[0038] Fig. 9 It is a structural schematic diagram of the locking plate in the second embodiment of the present application.

[0039] Description of reference numerals:

[0040] 1. stator conveyor line; 2. mover; 3. fixture; 31. positioning hole; 311. first contact surface; 312. second contact surface; 4. positioning device; 41. positioning block; 42. driving member; 421. cylinder; 422. slide bar; 43. positioning frame; 44. centering assembly; 441. centering plate; 442. push block; 443. first spring; 444. second spring; 445. touch switch; 446. guide rail; 447. first push plate; 448. second push plate; 449. The first connecting plate; 4410, the second connecting plate; 4420, the first torsion spring; 4430, the second torsion spring; 45, the avoidance assembly; 451, the pressure plate; 452, the avoidance rod; 453, the avoidance spring; 454, the bracket; 455, the baffle; 456, the return spring; 457, the avoidance block; 46, the locking assembly; 461, the locking block; 462, the locking plate; 4621, the locking groove; 4622, the driving hole; 4623, the guide rod; 463, the locking spring; 464, the driving block. DETAILED DESCRIPTION

[0041] The present application is further described in detail below in conjunction with the accompanying drawings.

[0042] Embodiment 1:

[0043] The present application embodiment discloses a device for improving the positioning accuracy of a fixture on a multi-mover, referring to Figure 1 , including a stator conveyor line 1 and a mover 2. Several workstations (not shown in the figure) are arranged on the stator conveyor line 1, and corresponding processing equipment (not shown in the figure) is arranged on each workstation. The mover 2 is slidably installed on the stator conveyor line 1, and the stator conveyor line 1 moves by electromagnetically driving the mover 2. This method is a prior art in the field and will not be elaborated here. A jig 3 for loading workpieces is fixedly installed on the mover 2, and a positioning device 4 is also installed at each workstation on the stator conveyor line 1. The positioning device 4 is used to calibrate the position of the jig 3 after the mover 2 is in place.

[0044] Reference Figure 1 and Figure 2 A positioning hole 31 is provided on the top wall of the jig 3, and a positioning surface is provided on the side wall of the jig 3 located at the positioning hole 31, and the positioning surface includes a first contact surface 311 and a second contact surface 312, and the first contact surface 311 and the second contact surface 312 are both located on the travel path of the mover 2, and the first contact surface 311 and the second contact surface 312 are respectively located on both sides of the positioning hole 31, and the distance between the upper end of the first contact surface 311 and the upper end of the second contact surface 312 is greater than the distance between the lower end of the first contact surface 311 and the lower end of the second contact surface 312, so that a structure with an upper end opening is formed between the first contact surface 311 and the second contact surface 312.

[0045] Reference Figure 1The positioning device 4 includes a positioning block 41, a driving member 42 and a positioning frame 43. The positioning frame 43 is mounted at a station on the conveying line of the mover 2, and the cross section of the positioning frame 43 is in the shape of a gate. The driving member 42 includes a cylinder 421 and a slide rod 422. The cylinder 421 is fixedly mounted on the top wall of the positioning frame 43 in the vertical direction, and the piston rod of the cylinder 421 passes through the top wall of the positioning frame 43 downward and extends downward. The positioning block 41 is fixedly mounted on the piston rod of the cylinder 421, and the positioning block 41 is used to be inserted into the positioning hole 31 of the fixture 3, and the shape of the cross section of the positioning block 41 is the same as the shape of the space formed by the first contact surface 311 and the second contact surface 312, and the distance between the lower end of the first contact surface 311 and the lower end of the second contact surface 312 is equal to the length of the lower end of the positioning block 41. One end of the slide bar 422 is fixedly mounted on the top wall of the positioning block 41 along the vertical direction, and the other end extends upward and passes through the top wall of the positioning frame 43 , and the slide bar 422 is kept in sliding connection with the positioning frame 43 .

[0046] The working principle of the embodiment of the present application is as follows: when the stator conveyor line 1 conveys the mover 2 to the work station, the positioning block 41 is driven by the driving cylinder 421 to move downward and be inserted into the positioning hole 31 of the jig 3. When the lower end of the positioning block 41 drops to the upper end of the first contact surface 311 and the second contact surface 312, the lower end of the positioning block 41 contacts the first contact surface or the second contact surface of the positioning hole 31 on the jig 3, so that the positioning block 41 squeezes the jig 3, thereby pushing the jig 3 to move, so that the jig 3 moves to a preset precise position, and the jig 3 drives the mover 2 to produce a certain displacement, so that it is convenient for the processing equipment to process the workpiece on the jig 3.

[0047] Embodiment 2:

[0048] The difference between the embodiment of the present application and the embodiment 1 is that, referring to Figure 3 and Figure 4The positioning device 4 also includes a limiting mechanism, which includes a centering component 44 and an avoidance component 45. The centering component 44 includes a centering plate 441, a push block 442, a reset member and a touch switch 445. The centering plate 441 is fixedly installed on the side wall of the mover 2 in the vertical direction, and one end of the centering plate 441 extends in a direction perpendicular to the side wall of the mover 2 in a direction away from the mover 2, and the plane where the centering plate 441 is located coincides with the axis of the positioning hole 31 on the fixture 3. A guide rail 446 is fixedly installed on the inner side wall of the positioning frame 43 along the direction of the travel path of the mover 2, and the push block 442 is slidably installed in the guide rail 446 along the travel direction of the mover 2. The reset member includes a first spring 443 and a second spring 444. The first spring 443 and the second spring 444 are both installed in the guide rail 446, and one end of the first spring 443 is fixedly connected to one end of the push block 442, and the other end of the first spring 443 is fixedly connected to the inner wall of the guide rail 446, one end of the second spring 444 is fixedly connected to the side wall of the other end of the push block 442, and the other end of the second spring 444 is fixedly connected to the inner wall of the guide rail 446.

[0049] Reference Figure 4 and Figure 5 A first push plate 447 and a second push plate 448 are installed on the side wall of the push block 442 close to the stator conveyor line 1 through a connecting piece. The first push plate 447 and the second push plate 448 are respectively located on both sides of the central axis of the positioning block 41, and the first push plate 447 and the second push plate 448 are symmetrically arranged along the length direction of the push block 442. The connecting member includes a first connecting plate 449, a second connecting plate 4410, a first torsion spring 4420 and a second torsion spring 4430. The first connecting plate 449 and the second connecting plate 4410 are both fixedly mounted on the side wall of the push block 442, and one end of the first connecting plate 449 and the second connecting plate 4410 extend in the direction of the stator conveying line 1, and the first connecting plate 449 and the second connecting plate 4410 are symmetrically arranged along the length direction of the push block 442, and are respectively located on both sides of the central axis of the positioning block 41, and the first connecting plate 449 is located on the side of the push block 442 close to the first spring 443, and the second connecting plate 4410 is located on the side of the push block 442 close to the second spring 444.

[0050] Reference Figure 4 and Figure 5The cross-sections of the first push plate 447 and the second push plate 448 are both Z-shaped, and one end of the first push plate 447 is rotatably installed on the side wall of the push block 442 near the first connecting plate 449 along the horizontal direction, and the other end of the first push plate 447 extends horizontally toward the direction of the stator conveying line 1, and the side wall of one end of the first push plate 447 close to the push block 442 is in conflict with the side wall of the first connecting plate 449, and the first torsion spring 4420 is installed on the rotating shaft of the first push plate 447, and one end of the first torsion spring 4420 is fixedly connected to the rotating shaft of the first push plate 447, and the other end is fixedly connected to the side wall of the first push plate 447 at the rotating shaft. One end of the second push plate 448 is rotatably installed on the side wall of the push block 442 near the second connecting plate 4410 along the horizontal direction, and the other end of the second push plate 448 extends horizontally toward the direction of the stator conveying line 1, and the side wall of one end of the second push plate 448 close to the push block 442 is in conflict with the side wall of the second connecting plate 4410, and the second torsion spring 4430 is installed on the rotating shaft of the second push plate 448, and one end of the second torsion spring 4430 is fixedly connected to the rotating shaft of the second push plate 448, and the other end is fixedly connected to the side wall of the second push plate 448 at the rotating shaft.

[0051] Reference Figure 4 and Figure 5 The touch switch 445 is fixedly mounted on the side wall of the positioning frame 43 close to the stator conveyor line 1 through a carrier plate, and the touch switch 445 is located on the central axis of the positioning block 41, and the touch switch 445 is electrically connected to the cylinder 421, and an instruction is sent to the control system through the touch switch 445, and an action instruction is sent to the cylinder 421 through the control system, so that the cylinder 421 is actuated, and the touch switch 445 sends instructions to the control system, the control system, and the control system sends an action command to the cylinder 421 are all existing technologies in the field, which will not be elaborated here. The touch switch 445 is located between the first push plate 447 and the second push plate 448, and the touch switch 445 is used for the side wall of the first push plate 447 and the second push plate 448 to collide. The avoidance component 45 is installed on the positioning frame 43, and the cylinder 421 and the centering component 44 are both connected to the avoidance component 45, and the avoidance component 45 is used to control the first push plate 447 or the second push plate 448 to separate from the centering plate 441.

[0052] Reference Figure 3 and Figure 5, when the stator conveyor line 1 drives the mover 2 to move from the side of the first push plate 447 away from the second push plate 448 toward the direction of the positioning frame 43, and makes the end of the centering plate 441 on the side wall of the mover 2 contact the end of the first push plate 447, thereby pushing the first push plate 447 toward the touch switch 445, so that the side wall of the first push plate 447 contacts the first connecting plate 449, and the first push plate 447 is limited by the first connecting plate 449, so that the centering plate 441 drives the push block 442 to move toward the touch switch 445 through the first push plate 447, refer to, 3 and Figure 4 , so that the push block 442 compresses the second spring 444 and stretches the first spring 443 . When the centering plate 441 on the mover 2 drives the first push plate 447 to move until the side wall of the first push plate 447 contacts the touch switch 445, the centering plate 441 is located at the central axis of the positioning block 41, so that the positioning block 41 is aligned with the positioning hole 31 on the fixture 3, and the touch switch 445 sends a control instruction to the control system, and the control system sends an action instruction to the cylinder 421, so that the cylinder 421 drives the avoidance component 45 to move, so that the avoidance component 45 drives the first push plate 447 to separate from the centering plate 441, so that the push block 442 is reset under the action of the first spring 443 and the second spring 444, thereby driving the first push plate 447 and the second push plate 448 to reset, and at the same time, the cylinder 421 drives the positioning block 41 to be inserted into the positioning hole 31 of the fixture 3 on the mover 2, so as to fine-tune the position of the fixture 3, so that the mover 2 produces a certain displacement driven by the fixture 3, so that the fixture 3 can reach a precise position.

[0053] Reference Figure 3 and Figure 4 After the workpiece on the jig 3 is processed, the cylinder 421 drives the positioning block 41 to rise, so that the positioning block 41 is separated from the jig 3 and the avoidance component 45 is reset. Then, the mover 2 drives the jig 3 to continue to move on the stator conveyor line 1, thereby driving the centering plate 441 to move to the second push plate 448. As the mover 2 continues to move, the centering plate 441 contacts the second push plate 448 and pushes the second push plate 448 away from the second connecting plate 4410, so that the second push plate 448 rotates and the second torsion spring 4430 is deformed, so that the centering plate 441 passes over the end of the second push plate 448, so that the mover 2 drives the jig 3 to continue to move to the next process. When the centering plate 441 passes over the second push plate 448, the second push plate 448 rotates and resets under the drive of the second torsion spring 4430.

[0054] Reference Figure 3 and Figure 4When the stator conveyor line 1 drives the mover 2 to move from the side of the second push plate 448 away from the first push plate 447 toward the direction of the positioning frame 43, and makes the centering plate 441 on the mover 2 move to the second push plate 448, the centering plate 441 contacts the second push plate 448. At this time, the second push plate 448 is limited by the second connecting plate 4410, so that the second push plate 448 moves with the movement of the centering plate 441, so that the second push plate 448 drives the push block 442 to move, so that the push block 442 compresses the first spring 443 and stretches the second spring 444. When the mover 2 drives the second push plate 448 to move through the centering plate 441 so that the second push plate 448 contacts the touch switch 445, the centering plate 441 moves to the central axis of the positioning block 41, so that the positioning block 41 can be aligned with the positioning hole 31 on the fixture 3. At this time, the touch switch 445 sends an instruction to the control system, so that the control system sends an instruction to the cylinder 421, so that the cylinder 421 drives the positioning block 41 to move downward, and drives the avoidance component 45 to operate, so that the avoidance component 45 drives the second push plate 448 to separate from the centering plate 441, so that the push block 442 is reset under the action of the first spring 443 and the second spring 444, thereby driving the first push plate 447 and the second push plate 448 to reset, and then the positioning block 41 is inserted into the positioning hole 31 of the fixture 3 driven by the cylinder 421, so that the position of the fixture 3 is adjusted through the positioning block 41, so that the fixture 3 reaches a precise position, so that the fixture 3 drives the mover 2 to produce a certain displacement.

[0055] Reference Figure 3 and Figure 4 After the workpiece on the fixture 3 is processed, the cylinder 421 drives the positioning block 41 to move upward, so that the positioning block 41 is separated from the fixture 3 and the avoidance component 45 is reset. Then the stator conveyor line 1 continues to drive the mover 2 to move, so that the mover 2 drives the centering plate 441 to move in the direction of the first push plate 447. When the centering plate 441 contacts the first push plate 447, the first connecting plate 449 is located between the first push plate 447 and the centering plate 441, and as the mover 2 continues to move, the centering plate 441 pushes the first push plate 447 to rotate in the direction away from the first connecting plate 449 and deforms the first torsion spring 4420. When the centering plate 441 moves to the end beyond the first push plate 447, the first push plate 447 is driven by the first torsion spring 4420 to rotate and reset in the direction of the first connecting plate 449, and the mover 2 drives the fixture 3 to continue to move to the next process.

[0056] Reference Figure 3 and Figure 6The avoidance assembly 45 includes a pressure plate 451, a avoidance rod 452 and a avoidance spring 453. The pressure plate 451 is fixedly mounted on the piston rod of the cylinder 421, and the pressure plate 451 is horizontally arranged and located above the positioning block 41. A bracket 454 is fixedly mounted on the side wall of the positioning frame 43 on which the guide rail 446 is mounted, and the bracket 454 is located above the guide rail 446. The avoidance rod 452 is slidably mounted on the bracket 454 along the vertical direction, and the lower end of the avoidance rod 452 passes through the bracket 454 and extends to the push block 442, and a baffle 455 is fixedly mounted on the top wall of the avoidance rod 452. A return spring 456 is also installed on the avoidance rod 452 between the baffle 455 and the bracket 454, one end of the return spring 456 contacts the top wall of the bracket 454, and the other end contacts the bottom wall of the baffle 455, and the baffle 455 is used for the pressure plate 451 to contact. A avoidance block 457 is fixedly mounted on the side wall of the side near the push block 442 at the lower end of the avoidance rod 452. The side of the avoidance block 457 near the push block 442 is arc-shaped, and the arc-shaped portion of the avoidance block 457 is used to abut against the side wall of the push block 442. The avoidance spring 453 is installed in the guide rail 446, and the avoidance spring 453 is located between the push block 442 and the side wall of the positioning frame 43, and one end of the avoidance spring 453 is fixedly connected to the side wall of the positioning frame 43, and the other end abuts against the side wall of the push block 442, and when the avoidance spring 453 is in a relaxed state, the end of the push block 442 near the stator conveying line 1 extends out of the guide rail 446.

[0057] Reference Figure 3 and Figure 7 When the cylinder 421 drives the positioning block 41 to descend, the pressure plate 451 also descends and contacts the top wall of the baffle plate 455, thereby pressing the baffle plate 455 downward and compressing the reset spring 456, so that the avoidance rod 452 moves downward, thereby driving the avoidance block 457 to descend to contact the side wall of the push block 442, thereby pushing the push block 442 into the guide rail 446, so that the push block 442 presses the avoidance spring 453, so that the avoidance spring 453 undergoes elastic deformation, so that the push block 442 drives the first push plate 447 and the second push plate 448 to move away from the stator conveyor line 1, so that the first push plate 447 or the second push plate 448 is separated from the centering plate 441 on the mover 2, so that the push block 442 is easily reset under the action of the first spring 443 and the second spring 444. Figure 3 and Figure 6When the cylinder 421 drives the pressure plate 451 to rise, the pressure plate 451 is separated from the baffle 455, so that the avoidance rod 452 moves upward and resets under the action of the return spring 456, so that the avoidance rod 452 drives the avoidance block 457 to move upward until it is separated from the push block 442, so that the push block 442 moves toward the direction of the stator conveying line 1 under the action of the avoidance spring 453, so that the push block 442 is close to the stator conveying line 1. The end of the push block 442 extends out of the guide rail 446 and drives the first push plate 447 and the second push plate 448 to move in the direction of the stator conveying line 1, so that the distance between the end of the first push plate 447 or the second push plate 448 close to the stator conveying line 1 and the side wall of the mover 2 is less than the length of the centering plate 441, so that when the centering plate 441 moves to the positioning frame 43, it can drive the first push plate 447 or the second push plate 448 to move, so as to facilitate the alignment of the positioning hole 31 of the fixture 3 on the mover 2 with the positioning block 41.

[0058] Reference Figure 8 and Fig. 9 The limiting mechanism also includes a locking assembly 46, which includes a locking block 461, a locking plate 462 and an elastic member. The locking block 461 is fixedly mounted on the side wall of the mover 2 and is located below the centering plate 441, and one end of the locking block 461 extends horizontally in a direction away from the mover 2. The locking plate 462 is slidably installed on the positioning frame 43 through the guide rod 4623, one end of the guide rod 4623 is fixedly installed on the side wall of the locking plate 462 at the end away from the stator conveying line 1, and the other end of the guide rod 4623 passes through the side wall of the positioning frame 43 in the horizontal direction and extends in the direction away from the stator conveying line 1, and the locking plate 462 is located below the guide rail 446, and the side wall of the locking plate 462 at the end close to the stator conveying line 1 is provided with a locking groove 4621 for the locking block 461 to be inserted, the locking groove 4621 is open at the end close to the stator conveying line 1, and when the locking block 461 is inserted into the locking groove 4621, the side wall of the locking block 461 is in contact with the inner wall of the locking groove 4621 at the end away from the stator conveying line 1. The end of the guide rod 4623 away from the locking plate 462 is fixedly mounted with a limit plate, and the elastic member includes a locking spring 463, which is mounted on the end of the guide rod 4623 away from the locking plate 462, and one end of the locking spring 463 contacts the side wall of the limit plate, and the other end contacts the side wall of the positioning frame 43. A driving hole 4622 for plugging the avoidance rod 452 is provided on the top wall of the locking plate 462, and a driving block 464 is fixedly mounted on the side wall of the side of the lower end of the avoidance rod 452 close to the stator conveyor line 1, and the cross section of the driving block 464 is a right triangle, and one end of the hypotenuse of the driving block 464 is located at the lower end of the avoidance rod 452, and the other end of the hypotenuse of the driving block 464 extends upward in an inclined direction away from the avoidance rod 452, and the hypotenuse of the driving block 464 is used to contact the side wall of the driving hole 4622 close to the stator conveyor line 1.

[0059] The working principle of the embodiment of the present application is as follows: when the mover 2 moves on the stator conveyor line 1 toward the direction of the positioning frame 43, the mover 2 drives the centering plate 441 to move to the positioning block 41, and when the positioning hole 31 on the fixture 3 is aligned with the positioning hole 31, the first push plate 447 or the second push plate 448 contacts the touch switch 445, so that the touch switch 445 sends an instruction to the control system, thereby causing the control system to send an instruction to the cylinder 421, so that the cylinder 421 drives the pressure plate 451 to move downward, so that the pressure plate 451 presses the avoidance rod 452 downward through the baffle 455, so that the avoidance rod 452 drives the avoidance block 457 to contact the push block 442 first, so that the push block 442 moves into the guide rail 446, so that the push block 442 drives the first push plate 447 and the second push plate 448 to move away from The stator conveyor line 1 moves in the direction of the first push plate 447 or the second push plate 448 to separate from the centering plate 441, so that the push block 442 can be reset under the action of the first spring 443 and the second spring 444, and then the cylinder 421 drives the pressure plate 451 to continue to move downward, thereby driving the avoidance rod 452 to continue to move downward, and the positioning block 41 is gradually inserted into the positioning hole 31 on the fixture 3, thereby adjusting the position of the fixture 3, and as the cylinder 421 drives the positioning block 41 to gradually insert into the lowermost end of the positioning hole 31, the pressure plate 451 drives the avoidance rod 452 to descend to the locking plate 462, and the bevel of the driving block 464 on the avoidance rod 452 contacts the side wall of the driving hole 4622, thereby pushing the locking plate 462 toward the direction of the stator conveyor line 1. When the positioning block 41 is fully inserted into the positioning hole 31 of the fixture 3, the locking block 461 is also just inserted into the locking groove 4621 of the locking plate 462, so that the locking block 461 is limited by the locking plate 462, thereby limiting the mover 2, thereby reducing the shaking of the mover 2 when the processing equipment processes the workpiece on the fixture 3, thereby affecting the processing accuracy.

[0060] When the workpiece is processed, the cylinder 421 drives the pressure plate 451 and the positioning block 41 to move upward, so that the positioning block 41 is separated from the fixture 3, and the pressure plate 451 is gradually separated from the baffle 455, so that the avoidance rod 452 moves upward and resets under the action of the reset spring 456, so that the avoidance rod 452 drives the driving block 464 to move upward, so that the driving block 464 is separated from the locking plate 462, and the locking plate 462 is reset under the action of the locking spring 463, so that the locking plate 462 is separated from the locking block 461, thereby releasing the mover 2 so that the mover 2 can move on the stator conveyor line 1 again.

[0061] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A device for improving the positioning accuracy of a jig on a multi-mover, comprising a stator conveyor line (1) and a mover (2), wherein the mover (2) is mounted on the stator conveyor line (1), and a work station is provided on the stator conveyor line (1), characterized in that: A jig (3) is installed on the mover (2); a positioning device (4) is provided at a workstation on the stator conveyor line (1); the positioning device (4) comprises a positioning block (41) and a driving member (42); the driving member (42) is installed on the stator conveyor line (1); the positioning block (41) is installed on the driving member (42); a positioning hole (31) for the positioning block (41) to be inserted is provided on the jig (3); a positioning surface is provided on the jig (3) at the positioning hole (31); a side wall of the positioning block (41) contacts the positioning surface and fine-tunes the jig (3); the positioning device (4) further comprises a positioning frame (43); the positioning frame (43) is installed at a workstation on the stator conveyor line (1); the driving member (42) is installed on the stator conveyor line (1); the positioning block (41) is installed on the driving member (42); a positioning hole (31) for the positioning block (41) to be inserted is provided on the jig (3); a positioning surface is provided at the positioning hole (31); a side wall of the positioning block (41) contacts the positioning surface and fine-tunes the jig (3); the positioning device (4) further comprises a positioning frame (43); the positioning frame (43) is installed at a workstation on the stator conveyor line (1); The moving member (42) comprises a cylinder (421), the cylinder (421) is mounted on a positioning frame (43), and the piston rod of the cylinder (421) extends downward, the positioning block (41) is mounted on the piston rod of the cylinder (421), a guide rod (4623) is also mounted on the positioning frame (43) in a vertical direction, the lower end of the guide rod (4623) is connected to the positioning block (41), the positioning device (4) also comprises a limiting mechanism, the limiting mechanism comprises a centering component (44) and an avoidance component (45), the centering component (44) comprises a centering plate (441), a push block (442), a reset member and a touch switch (445), the centering plate (441) is mounted on the side wall of the mover (2), and the centering plate (441) is mounted on the side wall of the mover (2), and the guide rod (4623) is connected to the positioning block (41). The middle plate (441) and the central axis of the positioning hole (31) of the fixture (3) are located on the same plane, the touch switch (445) is installed on the side wall of the positioning frame (43), and the touch switch (445) is located on the central axis of the positioning block (41), the touch switch (445) is electrically connected to the cylinder (421), a guide rail (446) is installed on the side wall of the positioning frame (43) near the touch switch (445) along the travel direction of the mover (2), the push block (442) is installed in the guide rail (446), and a first push plate (447) and a second push plate (448) are installed on the push block (442) through a connecting piece, and the first push plate (447) and the second push plate (448) are respectively located on the touch switch (445), and the side walls of the first push plate (447) and the second push plate (448) are used to resist the touch switch (445), the reset member is installed on the guide rail (446), and the reset member is connected to the push block (442), the avoidance component (45) is installed on the positioning frame (43), the avoidance component (45) is connected to the cylinder (421), and the avoidance component (45) is also connected to the push block (442), the avoidance component (45) includes a avoidance rod (452) and a avoidance spring (453), a pressure plate (451) is installed on the piston rod of the cylinder (421) above the positioning block (41), and the avoidance rod (452) is installed on the side wall of the positioning frame (43) along the vertical direction,The lower end of the avoidance rod (452) extends to the push block (442), and a avoidance block (457) is installed on the side wall of the lower end of the avoidance rod (452) close to the push block (442), and the side of the avoidance block (457) close to the push block (442) is arc-shaped, and the avoidance block (457) is used to contact the push block (442). A return spring (456) is also installed on the avoidance rod (452), one end of the return spring (456) is connected to the positioning frame (43), and the other end is connected to the avoidance rod (452), and the avoidance spring (453) is installed in the guide rail (446), and one end of the avoidance spring (453) is connected to the side wall of the positioning frame (43), and the other end extends to the side of the push block (442) away from the stator conveying line (1) and contacts the push block (442).

2. A device for improving the positioning accuracy of a jig on a multi-mover according to claim 1, characterized in that: The jig (3) is mounted on the top wall of the mover (2), and the positioning hole (31) is located on the top wall of the jig (3); the driving member (42) is mounted above the stator conveyor line (1), and the positioning block (41) is located above the jig (3); the positioning surface comprises a first contact surface (311) and a second contact surface (312); the first contact surface (311) and the second contact surface (312) are both located on the travel path of the mover (2), and the first contact surface (311) and the second contact surface (312) are respectively located on both sides of the positioning hole (31), and the distance between the upper end of the first contact surface (311) and the upper end of the second contact surface (312) is greater than the distance between the lower end of the first contact surface (311) and the lower end of the second contact surface (312), and the distance between the lower end of the first contact surface (311) and the lower end of the second contact surface (312) is equal to the length of the lower end of the positioning block (41).

3. The device for improving the positioning accuracy of the jig on the multi-mover according to claim 1 is characterized in that: The connecting member comprises a first connecting plate (449), a second connecting plate (4410), a first torsion spring (4420) and a second torsion spring (4430); the first connecting plate (449) is mounted on the push block (442) near the first push plate (447), and the first connecting plate (449) is located on a side of the first push plate (447) near the touch switch (445); the first connecting plate (449) is used to limit the first push plate (447); the first torsion spring (4420) is mounted on the push block (442), and the The first torsion spring (4420) is connected to the first push plate (447), the second connecting plate (4410) is installed on the push block (442) close to the second push plate (448), and the second connecting plate (4410) is located on the side of the second push plate (448) close to the touch switch (445), and the second connecting plate (4410) is used to limit the second push plate (448), the second torsion spring (4430) is installed on the push block (442), and the second torsion spring (4430) is connected to the second push plate (448).

4. The device for improving the positioning accuracy of the jig on the multi-mover according to claim 1 is characterized in that: The reset member includes a first spring (443) and a second spring (444), the first spring (443) and the second spring (444) are both installed in the guide rail (446), and the first spring (443) is located at one end of the push block (442) close to the first push plate (447), and one end of the first spring (443) is connected to the guide rail (446), and the other end is connected to one end of the push block (442), and the second spring (444) is located at one end of the push block (442) close to the second push plate (448), and one end of the second spring (444) is connected to the guide rail (446), and the other end is connected to the other end of the push block (442).

5. The device for improving the positioning accuracy of the jig on the multi-mover according to claim 1 is characterized in that: The limiting mechanism further comprises a locking assembly (46), the locking assembly (46) comprising a locking block (461), a locking plate (462) and an elastic member, the locking block (461) being mounted on a side wall of the mover (2), and the locking block (461) being located below the centering plate (441), the locking plate (462) being mounted on a side wall of the positioning frame (43), and the locking plate (462) being located below the pushing block (442), and a slot for the locking block (461) to be opened on the side wall of the locking plate (462) ) is inserted into a locking groove (4621), the elastic member is installed on the positioning frame (43), and the elastic member is connected to the locking plate (462), a driving block (464) is installed on the side wall of the lower end of the avoidance rod (452) away from the avoidance block (457), and a driving hole (4622) for plugging the avoidance rod (452) and the driving block (464) is opened on the top wall of the locking plate (462), and the driving block (464) is used to push the locking plate (462) to move in the direction of the stator conveying line (1).

6. The device for improving the positioning accuracy of the jig on the multi-mover according to claim 5 is characterized in that: The elastic member comprises a locking spring (463), one end of the locking spring (463) is connected to the positioning frame (43), and the other end of the locking spring (463) is connected to the locking plate (462).

7. The device for improving the positioning accuracy of the jig on the multi-mover according to claim 5 is characterized in that: The end of the locking groove (4621) away from the driving hole (4622) is open, and the side wall of the end of the locking groove (4621) close to the driving hole (4622) is in contact with the side wall of the locking block (461).

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